<template>
  <div>
      <el-form ref="form" label-width="80px">
        <el-form-item label="SPU名称">{{spu.spuName}}</el-form-item>
        <el-form-item label="SKU名称">
          <el-input placeholder="sku名称" v-model="skuInfo.skuName"></el-input>
        </el-form-item>
        <el-form-item label="价格(元)">
          <el-input placeholder="价格(元)" type="number" v-model="skuInfo.price"></el-input>
        </el-form-item>
        <el-form-item label="重量(千克)">
          <el-input placeholder="重量(千克)" v-model="skuInfo.weight"></el-input>
        </el-form-item>
        <el-form-item label="规格描述">
          <el-input type="textarea" rows="4" v-model="skuInfo.skuDesc"></el-input>
        </el-form-item>
        <el-form-item label="平台属性">
          <el-form :inline="true" ref="form" label-width="80px">
            <el-form-item :label="attr.attrName" v-for="(attr,index) in attrInfoList" :key="attr.id">
              <el-select placeholder="请选择" v-model="attr.attrIdAndValueId">
                <el-option :label="attrValue.valueName" :value="`${attr.id}:${attrValue.id}`" v-for="(attrValue,index) in attr.attrValueList" :key="attrValue.id"></el-option>
              </el-select>
            </el-form-item>
          </el-form>
        </el-form-item>
        <el-form-item label="销售属性">
          <el-form :inline="true" ref="form" label-width="80px">
            <el-form-item :label="saleAttr.saleAttrName" v-for="(saleAttr,index) in spuSaleAttrList" :key="saleAttr.id">
              <el-select placeholder="请选择" v-model="saleAttr.attrIdAndValueId">
                <el-option :label="saleAttrValue.saleAttrValueName" :value="`${saleAttr.id}:${saleAttrValue.id}`" v-for="(saleAttrValue,index) in saleAttr.spuSaleAttrValueList" :key="saleAttrValue.id"></el-option>
              </el-select>
            </el-form-item>
          </el-form>
        </el-form-item>
        <el-form-item label="图片列表">
          <el-tabel style="width: 100%" border :data="spuImageList" @selection-change="handleSelectionChange">
            <el-tabel-column type="selection" prop="prop" width="80"></el-tabel-column>
            <el-tabel-column prop="prop" label="图片" width="width">
              <template slot-scope="{row,$index}">
                  <img :src="row.imgUrl" style="width:100px;height:100px">
              </template>
            </el-tabel-column>
            <el-tabel-column prop="imgName" label="名称" width="width"></el-tabel-column>
            <el-tabel-column prop="prop" label="操作" width="width">
              <template slot-scope="{row,$index}">
                  <el-button type="primary" v-if="row.isDefault==0" @click="changeDefault(row)">设置默认</el-button>
                  <el-button v-else>默认</el-button>
              </template>
            </el-tabel-column>
          </el-tabel>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="save">保存</el-button>
          <el-button @click="cancel">取消</el-button>
        </el-form-item>
      </el-form>
  </div>
</template>

<script>
export default {
    name: '',
    data () {
      return {
        // 存储图片的信息
        spuImageList: [],
        // 存储销售属性
        spuSaleAttrList: [],
        // 存储平台属性的数据
        attrInfoList: [],
        // 收集sku数据的字段
        skuInfo: {
          // 第一类收集的数据：父组件给的数据
          category3Id: 0,
          spuId: 0,
          tmId: 0,
          // 第二类：需要通过数据双向绑定v-model收集
          skuName: "",
          price: 0,
          weight: "",
          skuDesc: "",
          // 第三类：需要自己书写代码
          // 默认图片
          skuDefaultImg: "",
          // 收集图片的字段
          skuImageList: [
            // {
            //   id: 0,
            //   imgName: "string",
            //   imgUrl: "string",
            //   isDefault: "string",
            //   skuId: 0,
            //   spuImgId: 0
            // }
          ],
          // 平台属性
          skuAttrValueList: [
            // {
            //   attrId: 0,
            //   valueId: 0,
            // }
          ],
          // 销售属性
          skuSaleAttrValueList: [
            // {
            //   id: 0,
            //   saleAttrId: 0,
            //   saleAttrName: "string",
            //   saleAttrValueId: 0,
            //   saleAttrValueName: "string",
            //   skuId: 0,
            //   spuId: 0
            // }
          ]
        },
        spu: {},
        // 收集图片的数据字段：但是需要注意，收集的数据目前缺少isDefault字段，将来提交给服务器数据的时候，需要整理参数
        imageList: []
      }
    },
    methods: {
      // 获取SkuForm数据
      async getData(category1Id,category2Id,spu) {
        // 收集父组件给予的数据
        this.skuInfo.category3Id = spu.category3Id;
        this.skuInfo.spuId = spu.id;
        this.skuInfo.tmId = spu.tmId;
        this.spu = spu;
        // 获取图片的数据
        let result = await this.$API.spu.reqSpuImageLIst(spu.id);
        if(result.code == 200) {
          let list = result.data;
          list.forEach(item => {
            item.isDefault = 0;
          })
          this.spuImageList = list;
        }
        // 获取销售属性的数据
        let result1 = await this.$API.spu.reqSpuSaleAttrList(spu.id);
        if(result1.code == 200) {
          this.spuSaleAttrList = result1.data;
        }
        // 获取平台属性的数据
        let result2 = await this.$API.spu.reqAttrInfoList(category1Id,category2Id,spu.category3Id);
        if(result2.code == 200) {
          this.attrInfoList = result2.data;
        }
      },
      // table表格复选框按钮的事件
      handleSelectionChange(params) {
        // 获取到用户选中图片的信息数据，但是需要注意，当前收集的数据当中，缺少isDefault字段
        this.imageList = params;
      },
      // 排他操作
      changeDefault(row) {
        // 图片列表的数据的isDefault字段变为 0
        this.spuImageList.forEach(item => {
          item.isDefault = 0;
        });
        // 点击的那个图片的数据变为1
        row.isDefault = 1;
        // 收集默认图片的地址
        this.skuInfo.skuDefaultImg = row.imgUrl;
      },
      cancel() {
        // 自定义事件，让父组件切换场景0
        this.$emit('changeScenes',0);
        // 清除数据
        Object.assign(this._data,this.$options.data());
      },
      // 保存按钮的事件
      async save() {
        // 整理参数
        // 整理平台属性
        const {attrInfoList,skuInfo,spuSaleAttrList,imageList} = this;
        // 整理平台属性的数据
        skuInfo.skuAttrValueList = attrInfoList.reduce((prev,item) => {
          if(item.attrIdAndValueId) {
            const [attrId,valueId] = item.attrIdAndValueId.split(":");
            prev.push({attrId,valueId});
          }
          return prev;
        },[]);
        // 整理销售属性
        skuInfo.skuAttrValueList = spuSaleAttrList.reduce((prev,item) => {
          if(item.attrIdAndValueId) {
            const [saleAttrId,saleAttrValueId] = item.attrIdAndValueId.split(":");
            prev.push({saleAttrId,saleAttrValueId});
          }
          return prev;
        },[]);
        // 整理图片的数据
        skuInfo.skuImageList = imageList.map(item => {
          return {
            imgName: item.imgName,
            imgUrl: item.imgUrl,
            isDefault: item.isDefault,
            spuImgId: item.id
          }
        })
        // 发请求
        let result = await this.$API.spu.reqAddSku(skuInfo);
        if(result.code == 200) {
          this.$message({type: 'success',message: '添加SKU成功'})
          this.$emit('changeScenes',0);
        }
      }
    }
}
</script>

<style scoped>

</style>